ET EXPLOIT [ConnectWise CRU] Java ECDSA (Psychic) TLS Signature (CVE-2022-21449)

Query · suricata

flow:established,to_client;
tls.certs;
content:"|04 03 00 08 30 06 02 01 00 02 01 00|";
tag:session,5,packets;
Raw source ET EXPLOIT [ConnectWise CRU] Java ECDSA (Psychic) TLS Signature (CVE-2022-21449) · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tls $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT [ConnectWise CRU] Java ECDSA (Psychic) TLS Signature (CVE-2022-21449)";
    flow:established,to_client;
    tls.certs;
    content:"|04 03 00 08 30 06 02 01 00 02 01 00|";
    tag:session,5,packets;
    reference:url,github.com/thack1/CVE-2022-21449;
    reference:cve,2022-21449;
    classtype:targeted-activity;
    sid:2036377; rev:2;
    metadata:created_at 2022_04_26, cve CVE_2022_21449, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_25;
)

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